Explained in slightly more detail here: https://www.reddit.com/r/VALORANT/comments/fxhjgx/crosshair_dot_is_not_in_the_middle_of_my_screen/fmviwwx?utm_source=share&utm_medium=web2x

Basically, make sure your dots and lines are all even numbers or all odd numbers. If you mix even and odd you'll get misaligned elements.

DreadPirateSnuffles

The bullets are slightly off center for the odd thickness crosshairs, it seems.

The hitscan is such that it makes no practical difference. Precision and accuracy are the same.

CSGO's crosshairs are drawn in a similar fashion.